mlrinstitutions.ac.in B.Tech I Year I Sem Exam MLR16 Question Paper 2017 : Institute Of Technology

Name of the Centre : MLR Institute Of Technology
Name Of The Exam : B.Tech I Year I Sem Examinations MLR16
Name Of The Subject : Applied Physics
Year : January-2017
Document type : Sample questions Papers

Website : https://mlrinstitutions.ac.in/
Download Sample Question Paper :
Applied Physics : https://www.pdfquestion.in/uploads/13199-AppliedPhysics.pdf
Differential Equations : https://www.pdfquestion.in/uploads/13199-DEA.pdf
Computational Methods : https://www.pdfquestion.in/uploads/13199-CMIC.pdf
Network Analysis : https://www.pdfquestion.in/uploads/13199-NetworkAnalysis.pdf
Computer Programming : https://www.pdfquestion.in/uploads/13199-ComputerProgramming.pdf

B.Tech I Year I Sem Examinations MLR16 Question Paper :

Applied Physics :
Time: 3hours
Max.Marks:75

Related : MLR Institute Of Technology B.Tech I Year I Sem MLR15 Supplementary Exam Question Paper 2016 : www.pdfquestion.in/13195.html

Note :
1.This question paper contains two parts A and B.
2. Part A is compulsory which carries 25 marks. Answer all Questions in Part A.
3. Part B consists of 5 units. Answer any one full question from each unit. Each question carries 10 Marks and may have a,b,c as sub sections.

Part-A :
1. a) Define measurand and resolution. (2M)
b) Draw the structure of FCC and write its coordination number and effective number of atoms per unit cell. (2M)
c) Draw hysteresis loop indicating retentivity and coercive-field. (2M)
d) Define pumping. (2M)
e) Define Interference and Diffraction. (2M)

2. a) Distinguish between accuracy and precision. (3M)
b) What is primitive cell and state whether FCC is a primitive cell or not justify your answer. (3M)
c) What are Polar and Non Polar dielectrics? (3M)
d) What is need of cavity resonator in laser system? (3M)
e) Distinguish between microscope and telescope. (3M)

Part-B :
3. a) Mention different types of errors with examples. (5M)
b) A rectangular board is measured with a scale having accuracy of 0.3 cm. The length and breadth are measured as 40.5 cm and 21.5 cm respectively find the relative error and percentage error of the area calculated. (5M)
(OR)
4. a) Explain the propagation of error with example of wheatstone bridge. (5M)
b) The mass and density of solid sphere are measured to be (15.5±0.2) kg and (5M) (5.5±0.1) kg/m3calculate the volume of the sphere with error limits.
5. a) Describe with suitable diagram the powder method for determination of crystal structure(5M)
b) What are Miller Indices? How they are obtained? (5M)
(OR)
6. a) Derive an expression for interplanar spacing between two adjacent planes of Miller indices (hkl) in a cubic lattice of edge length ‘a’. (5M)
b) X-rays of wavelength 1.5418??° are diffracted by (111) planes in a crystal at an angle 30° in the first order. Calculate the interatomic spacing. (5M)

7. a) Explain Electronic polarization and derive an expression for electronic polarizability. (5M)
b) Derive claussius Mosotti relation. (5M)
(OR)
8. a) Explain the terms Magnetic induction susceptibility, Permeability and Magnetic field intensity. (5M)
b) In a magnetic material of the field strength is found to be 106 A/m . If the magnetic susceptibility of the material is 0.5×10-5, calculate the intensity of magnetization and flux density in material. (5M)

9. a) Explain the construction and working of He Ne Laser. (5M)
b) Distinguish between spontaneous and stimulated emissions. (5M)
(OR)
10. a) Derive the relation between probabilities of spontaneous emission and stimulated emission in terms of Einstein coefficients. (5M)
b) Mention some important applications of lasers. (5M)

11. a) Explain Diffraction Grating and calculate maximum number of orders possible with a Grating. (5M)
b) How many orders will be visible if the wavelength of light is 5000??° and the number of lines per centimeter on the grating is 6655? (5M)
(OR)
12. a) Classify UV rays , Gamma rays and Microwaves . (5M)
b) Distinguish between simple and compound micro scope. (5M)

Computer Programming :
Time: 3 hours
Max. Marks: 75
Note :
** This question paper contains two parts A and B.
** Part A is compulsory which carries 25 marks. Answer all questions in Part A.
** Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.

PART-A :
1. a) Evaluate the expression 2+3*4/5-6 based on operator precedence. [2M]
b) Convert the following equation into corresponding C statement v (a2+b2). [2M]
c) Define an array. Write the syntax for 2D array declaration. [2M] d) Predict the output of the following program [2M]
e) Differentiate between structure and union. [2M]

2. a) Define a token and classify various tokens in C language. [3M]
b) Define a Constant and classify various types of constants in C Language. [3M]
c) Differentiate Actual arguments with formal arguments. [3M]
d) List the functions available for Dynamic Memory Allocation. [3M]
e) Define File. Write a program statement to create new file called “new.doc”. [3M]

PART-B :
3. a) Draw the flow chart to check whether a given number is prime or not. [4M]
b) With an example, explain the different data types of C programming language. [6M]
OR

4. a) Discuss in detail about Bitwise operators in C with examples. [5M]
b) Write a C program to print electricity bill of a customer based on number of units consumed
by using the following conditions.
If units<= 200, charge=0.6
If units>200 and units<=300, charge=0.75
If units>300, charge=1.00
If bill amount exceeds 400 then additional surcharge of 15% on the total amount. And print
consumer name and total amount to be paid. [5M]

5. a) Distinguish between While and Do-while control loops with examples. [5M]
b) Any number x is called coloured number if it does not contain any substring y with the property that the product z of all the digits of y is not equal to any of the substrings of x.
(For example, take x = 263, then its substrings are 2, 6, 3, 26, 63, 263 only. Now, take any Substring y= 26 then z= 2*6=12 or y=63 then z =6*3=18. Neither z is a substring of 263), Write a C program to check whether the given any three digit number is coloured number or not. [5M]
OR

6. a) Write the purpose of continue, goto and break statements [5M]
b) Write a C program to determine whether the given number is Armstrong number or not by using do-while loop. [5M]

7. a) Explain the classification of functions based on arguments and return values with suitable examples. [6M]
b) Write a C program which replaces each diagonal element A[i][j] of a given matrix A with aximum{A[i][j], sum of elements in ith row, sum of elements in jth column} [4M]
OR

8. a) What is recursion? Write a recursive program to solve the problem of Towers-of-Hanoi. [5M]
b) What is an array? Explain the declaration and initialization of one and two dimensional arrays with examples. [5M]

9. a) Explain in detail about the concept of Dynamic memory allocation with examples. [5M]
b) Define String. Explain the following string handling functions with examples. [5M]
i) strcpy( ) ii) stricmp( ) iii) strstr( ) iv) strcat( )
OR

10. a) Distinguish between array of pointers and pointer to an array? Explain pointer to pointer concept with an example. [6M]
b) Write a program to concatenation of two strings. [4M]

11. a) Define a file and discuss about reading, writing, opening and closing of a file. [5M]
b) Write a C program that compares two files and display message “Equal” or Not equal”. [5M]
OR

12. a) Explain random access file functions with suitable examples. [5M]
b) Write a program to copy the contents of a file into another file. [5M]